Ensure that Brightness is set to Auto/Low. Note: Drag down from the Notifications bar with two fingers > Tap and hold BRIGHTNESS
Turn off Bluetooth and Wi-Fi when not in use. Note: Drag down from the Notifications bar with two fingers > Tap BLUETOOTH and WI-FI to toggle on/off.
Turn off Live wallpapers. Note: Touch and hold an empty area of the home screen > Tap 'Wallpaper' > Choose another wallpaper type.
Turn off Location services. Note: Drag down from the Notifications bar with two fingers > Tap the 'Location icon' to toggle on/off.
Turn off the Auto-update apps setting. Note: Tap Play Store > Tap the 'Play Store tab' > Tap 'SETTINGS' > Tap 'Auto-update apps'.
Turn off the Auto-sync data setting. Note: Drag down from the Notifications bar with two fingers > Touch and hold DATA > Tap the Menu icon > Tap 'Auto-sync data'
Turn off Mobile data to prevent background applications from consuming battery. Note: To access, drag down from the Notifications bar with two fingers > Tap DATA to toggle on/off.
To access power saver mode, from the home screen, drag down the Notifications bar with two fingers.
Tap SETTINGS.
Scroll to, then tap Power saving mode.
To see a summary of battery availability, tap BATTERY.